Locale Vi Vn

Reference data for the Vietnamese (Vietnam) locale — endonym Tiếng Việt (Việt Nam), written in the Latin script, left-to-right (LTR).

Identifiers

• BCP 47 tag: vi-VN
• ISO 639-1: vi
• ISO 639-3: vie
• Script: Latn (Latin)
• Region: VN (Vietnam)
• Text direction: ltr — left-to-right (LTR)

Speakers (approximate)

• L1 (native): 76,000,000
• L2 (additional): 8,000,000
• L1+L2 (total): 84,000,000

Base locale

This is a regional variant of Locale Vi 001 (Vietnamese), the base/macro locale for this language.

Pluralization

CLDR plural categories for this locale: other (1 form).

• other — everything else (e.g. 0~15, 100, 1000, 10000, …)

See Unicode Messageformat for writing plural messages using these categories.

Translating into this locale

Apply Locale Vi 001 with the conventions of Vietnam.

• Standard variety: written Vietnamese follows the Hanoi-based standard; southern vocabulary (for example "heo" versus "lợn" for pig) appears in speech and may be regionally marked in text.
• Formats: dates "17/10/2026" or "ngày 17 tháng 10 năm 2026"; currency đồng (₫) after the amount; decimal comma and period for thousands; 24-hour clock.
• Names: family name first, then middle and given name (Nguyễn Văn An); address a person by the given name with a title (anh An, chị An).
• Tone: respectful of age and status; titles matter in business and government.

Common pitfalls

• Using Western name order for Vietnamese names.
• Using a casual "bạn" voice in formal customer or legal text.
• The general pitfalls in Locale Vi 001 also apply.

Learn more

• Locale for BCP 47 identifiers, locale-sensitive formatting, pluralization, and text-direction concepts that apply across all locales.
• Unicode Messageformat for writing plural/selection messages correctly for this locale's grammar.
• Unicode CLDR locale data for vi (https://cldr.unicode.org)